Xavier Electromyographic Wheelchair Control for Limited Mobility Patients

Inclusion Criteria: * ALS diagnosis by revised el Escorial criteria (definite, probable or probable laboratory supported) * Age 18-89 * Limited mobility with use of motorized wheelchair at screening-time * Impairment of hand function limiting the use of a standard joystick control * Caregiver willing to assist with transfers into wheelchair and application of controllers * Ability to attend study visits with a motorized wheelchair * Ability to communicate and answer patient reported outcome measure questions Exclusion Criteria: * Cognitive impairment prohibiting safe independent mobility as defined by an ALS-Cognitive Behavioral Screen (ALS-CBS) score of \<10 or the opinion of the investigator * A sensory impairment prohibiting safe independent mobility in the opinion of the investigator * Allergy to adhesives or electrode gels (required for EMG electrodes) * Skin breakdown over the temporalis muscle that would predispose to further breakdown and/or infection with electrodes * Severe loss of facial muscle functionality or control that would preclude EMG electrode efficacy * Subjects who do not have the capacity to consent